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olga55 [171]
3 years ago
15

Three times a​ number, added to 8​, is 53. Write an equation that you can use to find the number. Let n represent the number. Wh

at is the​ number? Use pencil and paper. Draw a model of the equation.
Mathematics
1 answer:
Sophie [7]3 years ago
5 0

Answer:

3n+8=53

The answer is 15

Step-by-step explanation:

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What's the area of this?
Jet001 [13]
122.

Thank you very much.
4 0
4 years ago
The sides of an equilateral triangle measure 0.2(10x+90)cm each. If the perimeter of the triangle is 612.6 cm, what is the side
Sedbober [7]

Answer:

204.2 cm

Step-by-step explanation:

equilateral means all sides are of equal length.

the perimeter of such a triangle is simply 3 times one of these sides.

so,

612.6 = 3×0.2×(10x + 90) = 0.6×(10x+90) = 6x + 54

6x = 558.6

x = 93.1

so, a single side is

0.2×(10×93.1 +90) = 0.2×(931 + 90) = 0.2×1021 = 204.2 cm

to check

3×204.2 = 612.6 = the original perimeter.

so, correct.

8 0
3 years ago
How many times greater is the value of the 5 in 500 than the value of the 5 in 50
densk [106]
It is 10 times bigger. It is easy because you can do 50 x 10 which is 500 and you know it is 10 times bigger.
4 0
3 years ago
These are congruent. What is the measurement of E?
oee [108]

Answer:

m<E = 44°

Step-by-step explanation:

If the figures are congruent, therefore their corresponding angles would also be equal to each other.

Thus, angle K corresponds to angle E.

Since m<K = 44°, therefore,

m<E = 44°

3 0
3 years ago
Flaky pastry can be made using flour and fat in the ratio 4 : 3. Jake makes some flaky pastry using 90 grams of fat. What weight
lubasha [3.4K]

Answer:

He use 120 grams of flour.

Step-by-step explanation:

Given:

Flaky pastry can be made using flour and fat in the ratio 4 : 3. Jake makes some flaky pastry using 90 grams of fat.

Now, to find the weight of flour he use in making flaky pastry.

Let the weight of flour be x.

Weight of fat = 90 grams.

The ratio of flour and fat used in making flaky pastry is 4 : 3.

<em>As, 4 is equivalent to 3.</em>

<em>Thus, </em>x<em> is equivalent to 90.</em>

Now, to solve using cross multiplication method:

\frac{4}{3} =\frac{x}{90} \\\\By\ cross\ multiplying\ we\ get:\\\\360=3x\\\\Dividing\ both\ sides\ by\ 3\ we\ get:\\\\120=x\\\\x=120\ grams.

Therefore, he use 120 grams of flour.

4 0
3 years ago
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